CN111843305A - A lower part mechanism for efficient welding of automobile sheet metal parts - Google Patents

Abstract

The invention relates to an automobile welding blanking tool, in particular to a lower part mechanism for efficient welding of an automobile sheet metal part assembly, including a lower part mechanism installed above a welding fixture, and the lower part mechanism includes a positioning frame , Longitudinal lifting assembly, lifting support plate, lifting assembly and its swing mechanism, the positioning frame is used to install on the side of the welding fixture, the vertical lifting assembly is installed vertically in the positioning frame, and the lifting support plate is installed horizontally At the lifting end of the vertical lifting assembly, the lifting assembly is horizontally installed on the upper end of the lifting pallet, and the side end of the lifting assembly extends to the side area of the welding fixture, and the swing mechanism includes a hinge seat, The adjusting frame, the waist-shaped adjusting groove, the hinge joint, the connecting rod and the limiting ball have the advantages of simple structure and convenient lower parts, which reduces the labor intensity of workers, saves time and improves production efficiency.

Description

A lower part mechanism for efficient welding of automobile sheet metal parts

technical field

The invention relates to an automobile welding blanking tool, in particular to a lowering mechanism for efficient welding of an automobile sheet metal assembly.

Background technique

With the development of the economy and the improvement of living standards, the use of automobiles is increasing year by year. The relationship between vehicles and human beings can be said to be inseparable, and vehicle manufacturers, vehicle component manufacturers and drivers not only pursue the performance, safety and fuel-saving effects of the vehicle itself, but also more and more for the components of the car. Pay attention. With the development of the times, the requirements for the replacement of automobiles are getting faster and faster, so the trial production of new models is also more frequent.

When welding the automobile sheet metal assembly, it is necessary to weld the various parts together according to the requirements, and these parts have strict installation position requirements, so they need to be positioned in the welding operation. The welding operation is carried out on the welding fixture. First, the loose parts are placed and positioned on the welding fixture, and then the welding operation is carried out. After the welding is completed, the positioning parts of the welding fixture are loosened, and the welded assembly is taken out.

In order to facilitate the cutting of the welded automobile sheet metal parts and the next round of welding operations, the lifting method is generally used in the cutting tool for automobile welding in the prior art. In this way, the operator needs to The finished parts are first removed from the fixture, and then placed on the nearby station equipment, and then the loose parts are taken from other station equipment and installed on the fixture for the next round of welding. In this operation method, workers need to It is labor-intensive and time-wasting to walk back and forth around the position repeatedly, which cannot meet the production demand of high tact.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a lower part mechanism for efficient welding of automobile sheet metal parts assembly.

For this purpose, the present invention adopts the following technical solutions:

Provide a lower part mechanism for efficient welding of automobile sheet metal parts assembly, including a lower part mechanism for installation above a welding fixture, the lower part mechanism includes a positioning frame, a longitudinal lifting assembly, a lifting bracket, a bracket The lifting assembly and its swing mechanism, the positioning frame is used to be installed on the side of the welding fixture, the vertical lifting assembly is vertically installed in the positioning frame, the lifting pallet is horizontally installed at the lifting end of the longitudinal lifting assembly, the The lift assembly is horizontally installed on the upper end of the lifting pallet, and the side end of the lift assembly extends to the side area of the welding fixture. The swing mechanism includes a hinge seat, an adjustment frame, a waist-shaped adjustment groove, and a hinge head. , connecting rod and its limiting ball, the waist-shaped adjustment groove is horizontally arranged on the end surface of the outer side of the positioning frame, the hinge seat is arranged on the end surface of the lifting pallet, and the lower end of the lifting component is connected to the The hinge seat is rotated and matched, the adjusting frame is arranged at the lower end of the lift assembly, the limiting ball is arranged at the lower end of the connecting rod, and the upper end of the connecting rod passes through the waist-shaped adjustment groove, and the hinge head is installed On the upper end of the connecting rod, and the end of the adjusting frame is hinged with the hinge joint.

Preferably, it also includes an auxiliary limit assembly, the auxiliary limit assembly is composed of a limit support plate, a longitudinal limit rod 1 and its longitudinal limit rod two, and the limit support plate is provided on the lift assembly. On the lower end surface, the first longitudinal limit rod is vertically arranged on the positioning frame, and the second longitudinal limit rod is vertically arranged on the upper end of the lifting pallet.

Preferably, the lift assembly includes a lateral support bar and a support rod arranged in parallel on the lateral support bar, and the end of the support rod is provided with a vertical limit section perpendicular to the support rod, the lateral support bar The lower end of the hinge is hinged with the hinge seat.

Preferably, one end of the transverse support bar is provided with a lateral protection plate perpendicular to the transverse support bar.

Advantages of the present invention: when the present invention is in use, it is installed above the welding fixture through a positioning frame, and when the welding operation is performed, the parts to be welded are placed in the welding fixture according to the welding requirements, and the welding fixture is used for positioning. , and then the workers use the welding torch to weld the various parts together to form a sheet metal assembly. When the sheet metal assembly needs to be removed, the positioning part of the welding fixture is released, and the longitudinal lifting assembly is activated. During the ascending process, the lifting assembly is lifted up by the lifting plate, and the welded sheet metal assembly is located above the lifting assembly. When the lifting assembly drives the sheet metal assembly to rise, when the limiting ball at the lower end of the connecting rod contacts the lower end of the waist-shaped adjusting groove, the vertical lifting assembly continues to rise. The limitation of the connecting rod will cause the lifting assembly to swing around the hinge seat at the upper end of the lifting pallet, so that the lifting assembly changes from a horizontal state to an inclined state, and the sheet metal assembly moves along the support rod under the action of gravity. Slide to the side of the welding fixture. At this time, the vertical lifting assembly is reset, so that the lifting assembly changes from the inclined state to the horizontal state, and the next round of parts positioning and welding is carried out. The sheet metal assembly is taken out and transferred to the designated area;

In this way, when the sheet metal assembly is not taken out from the lifting assembly (at this time, the sheet metal assembly slides to the position on the lateral area of the welding fixture on the lifting assembly due to gravity), the welding fixture The positioning part of the welding machine is vacated, and the parts can be positioned on the welding fixture in turn, and in the process of taking the parts (the parts are placed in the designated area, and workers need to pick them up) the welded sheet metal can be The parts assembly is removed and transferred to the designated area, which reduces the number of workers walking back and forth in the station accessories, thereby improving work efficiency.

Description of drawings

In order to describe the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings in the embodiments of the present invention are briefly introduced below.

Fig. 1 and Fig. 2 are structural representations of the present invention;

Fig. 3 is the enlarged view of A place in Fig. 1;

Fig. 4 is the schematic diagram when the present invention is applied;

In the picture: 1-positioning frame, 2-longitudinal lifting assembly, 3-lifting pallet, 4-hinge base, 5-horizontal support bar, 6-support rod, 7-vertical limit section, 8-side protection plate , 9-Auxiliary limit components, 91-Limit support plate, 92-Longitudinal limit rod 1, 93-Longitudinal limit rod 2, 10-Waist-shaped adjustment groove, 11-Link rod, 12-Limit ball, 13 -Adjustment frame, 14-Hinged head, 15-Welding fixture, 16-Sheet metal assembly.

Detailed ways

The technical solutions of the present invention are further described below with reference to the accompanying drawings and through specific embodiments.

Among them, the accompanying drawings are only used for exemplary description, and they are only schematic diagrams, not physical drawings, and should not be construed as restrictions on this patent; in order to better illustrate the embodiments of the present invention, some parts of the accompanying drawings will be omitted, Enlarged or reduced, does not represent actual product size.

Referring to FIG. 1 to FIG. 4 , a lower part mechanism for efficient welding of automobile sheet metal parts assembly includes a lower part mechanism installed above the welding fixture 15 , and the lower part mechanism includes a positioning frame 1 , longitudinal lifting assembly 2, lifting pallet 3, lifting assembly and its swing mechanism, the positioning frame 1 is used to be installed on the side of the welding fixture 15, and the longitudinal lifting assembly 2 is vertically installed in the positioning frame 1, so The lifting pallet 3 is horizontally installed on the lifting end of the vertical lifting assembly 2, the lifting assembly is horizontally installed on the upper end of the lifting pallet 3, and the side end of the lifting assembly extends to the side of the welding fixture 15. area, the swing mechanism includes a hinge seat 5, an adjustment frame 13, a waist-shaped adjustment slot 10, a hinge head 14, a connecting rod 11 and its limiting ball 12, and the waist-shaped adjustment slot 10 is horizontally arranged on the outer end face of the positioning frame 1. Above, the hinge seat 4 is arranged on the end face of the lifting pallet 3, and the lower end of the lift assembly is rotatably matched with the hinge seat 4, and the adjusting frame 13 is arranged on the lower end of the lift assembly , the limiting ball 12 is arranged on the lower end of the connecting rod 11, and the upper end of the connecting rod 11 passes through the waist-shaped adjusting groove 10, the hinge joint 14 is installed on the upper end of the connecting rod 11, and the adjusting frame 13 The end of the hinge is hinged with the hinge joint 14 .

In this embodiment, an auxiliary limit assembly 9 is also included. The auxiliary limit assembly 9 is composed of a limit support plate 91 , a longitudinal limit rod one 92 and a longitudinal limit rod two 93 . The limit support plate 91 is arranged on the lower end surface of the lift assembly, the first longitudinal limit rod 92 is vertically arranged on the positioning frame 1, and the second longitudinal limit rod 93 is vertically arranged on the bottom of the lifting pallet 3. At the upper end, when the vertical lift assembly 2 is in the retracted state, the angle between the lift assembly and the horizontal plane is 0°, and the lower end of the limit stay plate 91 is in contact with the end of the longitudinal limit rod 1 92 to limit the position At the same time, the lower end of the limit brace 91 is also in contact with the upper end of the second longitudinal limit rod 93, the purpose is to prevent the lift assembly from being lifted due to the gravitational action of the sheet metal assembly 10 during the lifting process. The components are tipped to the rear.

In this embodiment, the lift assembly includes a lateral support bar 5 and a support rod 6 arranged in parallel on the lateral support bar 5, and the end of the support rod 6 is provided with a vertical limiter perpendicular to the support rod Section 7, the lower end of the lateral brace 5 is hinged with the hinge base 4.

In this embodiment, one end of the lateral support bar 5 is provided with a lateral protection plate 8 perpendicular to the lateral support bar.

When the present invention is in use, the positioning frame 1 is installed above the welding fixture 15. During the welding operation, the loose parts to be welded are placed in the welding fixture 15 according to the welding requirements, and the welding fixture 15 is used for positioning. Then the worker uses the welding torch to weld the loose parts together to form the sheet metal assembly 16. When the sheet metal assembly 16 needs to be removed, the positioning part of the welding fixture 15 is released, and the longitudinal lifting assembly 2 is activated. The lifting assembly 2 lifts the lifting assembly upward through the lifting pallet 3 during the ascending process. The welded sheet metal assembly 16 is located above the lifting assembly, and the lifting assembly will drive the sheet metal assembly during the ascending process. 16 Disengage from the welding fixture 15. When the lifting component drives the sheet metal assembly 16 to rise, when the limiting ball 12 at the lower end of the connecting rod 11 contacts the lower end of the waist-shaped adjusting groove 10, the longitudinal lifting component 2 continues to rise. , at this time, the lifting assembly is restricted by the adjusting frame 13 and its connecting rod 11 when it rises, which will cause the lifting assembly to swing around the hinge seat 4 at the upper end of the lifting bracket 3, so that the lifting assembly changes from a horizontal state to a In the inclined state, the sheet metal assembly 16 slides along the support rod 6 to the side of the welding fixture 15 under the action of gravity. At this time, the vertical lift assembly 2 is reset, so that the support lift assembly changes from the inclined state to the horizontal state. The next round of loose parts positioning and welding, and in the process of taking the loose parts, the worker takes out the sheet metal part assembly 16 and transfers it to the designated area;

In this way, when the sheet metal assembly 16 is not taken out from the lifting assembly (at this time, the sheet metal assembly 16 slides to a position on the lifting assembly on the side of the welding fixture 15 due to gravity) , the positioning part of the welding fixture 15 is vacated, and the loose parts can be positioned on the welding fixture 15 in turn, and in the process of taking the loose parts (the loose parts are placed in the designated area, and workers need to pick them up). The welded sheet metal assembly 16 is removed and transferred to a designated area, which reduces the number of times that the worker walks back and forth in the station attachment, thereby improving work efficiency.

The invention has the advantages of simple structure and convenient assembly, which reduces the labor intensity of workers, saves time and improves production efficiency.

As mentioned above, the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand: The technical solutions described in the embodiments are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (4)

1. The utility model provides a mechanism under convenient to high-efficient welding of car sheet metal component assembly is with, is including being used for installing the mechanism under in the top of welding jig (15), a serial communication port, mechanism under includes locating rack (1), vertical lifting unit (2), lifting support plate (3), lifts subassembly and swing mechanism, and locating rack (1) is used for installing in the side of welding jig (15), vertical lifting unit (2) are vertically installed in locating rack (1), lifting support plate (3) horizontal installation is at the lift end of vertical lifting unit (2), lift subassembly horizontal installation is in the upper end of lifting support plate (3), just the side tip of lifting the subassembly extends to the side region of welding jig (15), swing mechanism includes free bearing (4), alignment jig (13), waist shape adjustment tank (10), articulated head (14), connecting rod (11) and spacing ball (12) thereof, waist shape adjustment tank (10) level sets up on the terminal surface in the outside of locating rack (1), free bearing (4) set up on the terminal surface of lifting support board (3), just lift the lower extreme of subassembly with free bearing (4) normal running fit, adjustment rack (13) set up lift the lower extreme of subassembly, spacing ball (12) set up the lower extreme of connecting rod (11), just waist shape adjustment tank (10) are passed to the upper end of connecting rod (11), and install articulated joint (14) the upper end of connecting rod (11), and the tip of adjustment rack (13) with articulated joint (14) are articulated.

2. The mechanism for facilitating efficient welding of the automobile sheet metal part assembly is characterized by further comprising an auxiliary limiting component (9), wherein the auxiliary limiting component (9) is composed of a limiting supporting plate (91), a first longitudinal limiting rod (92) and a second longitudinal limiting rod (93), the limiting supporting plate (91) is arranged on the lower end face of the lifting component, the first longitudinal limiting rod (92) is vertically arranged on the positioning frame (1), and the second longitudinal limiting rod (93) is vertically arranged on the upper end of the lifting supporting plate (3).

3. The mechanism for facilitating efficient welding of the automobile sheet metal part assembly is characterized in that the lifting component comprises a transverse supporting strip (5) and a supporting rod (6) which is arranged on the transverse supporting strip (5) in parallel, a vertical limiting section (7) perpendicular to the supporting rod (6) is arranged at the end of the supporting rod (6), and the lower end of the transverse supporting strip (5) is hinged to the hinged support (4).

4. The mechanism for facilitating efficient welding of the automobile sheet metal part assembly is characterized in that one end of the transverse supporting strip (5) is provided with a lateral protection plate (8) perpendicular to the transverse supporting strip (5).

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